Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Buffalo via Dallas-Fort Worth: arrives on time 40%
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08:30 ORD → 11:04 DFWAA 1555 · American · 2h 34m · 71% on time, 1.4% cancelled
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51m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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11:55 DFW → 15:53 BUFAA 1615 · American · 2h 58m · 65% on time, 2.9% cancelled
Total trip 6h 23m, scheduled departure to arrival (Buffalo is 1 h ahead of Chicago). Times are local. Both flew on 55 of the last 56 days.
Makes the connection63%The first flight arrived more than 6 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time40%First flight not cancelled (1.4% are) × connection made (63%) × second flight not cancelled (2.9% are) and within 15 minutes (65%).
Total trip6h 23mORD 08:30 to BUF 15:53, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.